Carbureter.



W. E. HOWES.

CARBURETER.

APPLICATION FILED JULY :4, 1914.

1 180,1 52. Patented A r. 18, 1915.

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" i/Ma W. E. HOWES.

CARBURETER.

I aPfLICATION FILED JULY 14, I914.

1,180,1 52. Patented Apr. 18,1916.

3 SQlEETS-SHEET 2.

VITNESSES: IN VEN'LOR W E. HOWES.

CARBURETER.

APPLICATION FILED JULY 14. 1914.

Patented Apr. 18, 1916 3 SHEETS-SHEET 3- 11 K; umlluiifim INVENTOR MM mflflr I @wMi I W1,

WITNESSES:

UNITED STATES PATENT OFFICE.

WRIGHT E. HOWES, OF SAN FRANCISCO, CALIFORNIA, ASSIGNOR F ONE-FOURTH TO JOHN P. WATERS, OF SAN FRANCISCO. CALIFORNIA.

CARBURETER.

Specification of Letters Patent.

Patented Apr. 18, 1916.

Application filed July 14, 1914. Serial No. 850,900.

following is a specification.'

This invention relates to carbureters.

One of the'objects of the present invention is to provide a simple. substantial, easily adjusted carbureter, which is espe cially constructed for handling lowgravity fuel oils, such as distillates and the like; and

to provide a multiple jet spray nozzle, to gether with a novel form of air valve. which is adapted to throw the spray over the larg est amount of area possible, thereby assist ing vaporization.v

Another object of the invent-ion is to provide means for heating the gaseous mixture which passes through the carbureting chamber to further assist vaporization.

The invention consists of the parts and the construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Figure 1 is a cross section on line 11.

Fig. 2. Fig. 2 is a longitudinal section on line 2-2. Fig. 1. Fig. 3 is an enlarged plan view of the .needle valve adjusting collar. Fig. l is a side elevation of same. Fig. 5 is an end elevation of the carbureter. Fig. 6 is a cross section on the line 66. Fig. 1.

Fig. 7 is a horizontal section on line 1-7.

Fig. 1. Fig. 8 is a plan view of thelower auxiliary air valve. Fig. 9 is a plan view of the upper auxiliary air valve. Fig. 10 is a. plan view. showing the relative position of the inlet ports in the upper and lower air valves.

A indicates the mixing chamber of the carbureter. in which is mounted a ribbed pipe 2. through which the unobstructed exhaust from the engine (not here shown) is directed.

3 is the main intake end of the carbureter which leads to the mixing chamber. and r the outlet from same.

Secured on one side of the carbureter. near the inlet opening 3. a float chamber 5 with which the fuel supplv pipe is connected. as at (i. and mounted in said chamber a needle valve 7 and a float 9. Which float 8 is connected with the needle valve by means of the pivoted arms and links 9. The lover 1 c the needle valve is threaded and extends through a collar 10 through which connection is made with the float; while the upper end of the needle valve extends through the cover of the float chamber and is provided with a nut or finger grip 11 by which the needle valve may be turned and adjusted with relation to the sat 1;. The fuel level or supply admitted to the float chamber may thus be regulated from the exterior of the carbureter without disturbing any. connections or removing any parts;

13 is a connection formed on one side of the float chambe n'hich extends into the intake end 3 of the ca rbureter. and formed on the end of said extension is an upturned extension l on the upper end of which is formed a horizontally positioned. cylindrical-shaped spray nozzle 15. The upper face of this spray nozzle is provided with a slot 16 which extends the entire length of the same. h'lounted in the interior of the cylinder and controlled by a crank arm 17' is a valve 18. on the lower side of which is formed a continuous passage 19, and on the upper side of which is formed a plurality of discharge openings 20. The turning of the valve. by means of the crank arm 17. will bring the openings 20 into and out of register with the slot 16. thus controlling the amount of fuel delivered through same.

l\'[ounted on each side of the horizontally positioned spray nozzle is a wing valve 21: the valves being mounted upon rods 22 which extend through the ends of the carbureter casing and carry crank arms 23 on their outer ends which extend into a slotted bar 21. The slotted bar 24 is carried by an adjustable screw 25 mounted in a lug 36 formed on the exterior of the carbureter casing. The lifting of the slotted ha; i by means of the screw will trausi'n no'vethrough the connection 6, to the float chamber 5, where the lowland quantity admitted are controlled by the float 8 and needle valve 7. The fuel then passes through a passage '27 and is from there permitted to enter into passes around the exterior ribbed surface of pipe 2.

A wire screen 28 covers the lower exterior surface of the exhaust pipe and-is provided for the purpose of breaking up the small globules discharging from the spray nozzle before they contact with the heated surface of the exhaust pipe. It also tends to mix the air and spray and will thus, to a certain degree, promote vaporization.

A novel form of auxiliary air valve has been provided in the present device which is adapted to'operate in conjunction with the throttle'valve 29. The throttle valve is in this instance secured upon a rod 30 which is turnably mounted in a nipple ill securcd'in the outlet end of the mixing chamber. Secured exterior of the nipple is a co lar 32, having an upwardly turned flange 33 formed thereon, and turnably mounted, exterior of the nipple, and adapted to seat uponthc flange 33, an auxiliary air valve Bl, ,(lnc side of said valve is provided with gear teeth 35 which are adapted to intermesh with teeth 36 formed on the segment 37 carried by the rod 30. Any movement of the throttle valve is thus transmitted through rod 30 and gear segment 3? to turn the valve 34. hey are thus operated or moved in unison and the action will be as follows: The valve 34. is provided with two air inlet openings 34 and 34 and the air admitted through these openings ispermitted to enter the annular space formed between the annular flange 33 and the exterior wall of the nipple. The air is then permitted to pass through a plurality of radially disposed openings 38, formed in the nipple. and will thus enter directly iutothe vapor duct and mix with the gases from the cal-bursting chamber.

Mounted above the valve 1 is a second valve. fl! and. formed in said valve is a pair oi" air inl-r openings 11 and 3?)" of a shap similar lo those shown in valve ik. but placed in an opposite position t same, and

In operation, air will enter through the openings 42 into the annular passage formed between the collar 40 and valve 39. The air will then pass through the openings 39* and 39 and openings ill" and 34" into the annular passage formed between the valve 34 and, collar 32 and is finally permitted to enter -the vapor duct through the radially positioned inlet openings 38. The volume of air admitted is, however, controlled, first of all, by means of the valve 39 which is manually operated ,through a lever connection 43. For instance, if the engine to which'the carbureter is connected is running at high speed it must be assumed that the throttle valve 29 is completely open. The air openings in the valves 39 and 34 should then completely register with each other to admit the largest volume of air possible. If it is desired to slow down by means of the throttle, it is only necessary to swing the throttle by means of the crank arm 30. It, is also necessary to decrease the proportion of auxiliary air admitted by decreasingthe inlet openings through the valves 39 and 34. This is auton'iatically accomplished in the present instance, as valve 34 is directly con nccted with the throttle valve through means ,of the gear segment 37 andgear teeth 35.

The closing of the throttle valve 29 will thus be followed with a similar or proportional closing of the lower auxiliary air valve 34,

as this is turned with relation to the valve closure of the throttle valve will insure a a omplete closure of the auxiliary air valve connections; this degree of closure bcin however, regulated by the valve 3!) which is manually operated through the lever 43 to increasc the proportional area through the auxiliary air valve for different speeds and altitudes.

Anauxiliary air valve constructed as here shown may also be used to a great advantage as a brake. when coasting down bills; as the throttle valve can he completely closed and the valve 39 moved into position where it will register with the openings in the valve Ill. Thev air can thus be drawn in through the openings formed and will consequently enter the cylinders through the inlet yal oe in the il-;ll.'il manner. The area of ilit opening through the auxiliary valve w ll regulate the epeeil with which the eh ean run when 'oing tl )-\ll hill and eouwmrently :ret a brake. I, alr uture ol' ll e nozzle is vary ieahin" Forms a w i v VA? tr 3 m the .-pray ma "l area ol' the exhaust IH'Hit one unit and are vwears-(l to the rail/in. r t'tisjli h gwreneso :Kllll 5]. 'l'he A lar :e vapor Pil t- 8 11K or. earlmreting ehaniber neil exterior of the exhaust pipe makes i; lllliiUrSFlillt to ehoh'i the carburetor with rarimn formations 'l'orinetl interior thereot'. A eur ureter eonstrueterl a here shown in simple aiul compact in construction and tloe not tulle any more spaee than the usual lea-in ol' earbureters now in use. The use of the exhaust heat; together with the novel apray r .le prmhltal, greatly iii-- Ming elliy-ientty ot the earl a wwraaguent ruloetion in mil 5: per iEH'Nc pmrer. the lliultl'ljllfi antl tinisl: oi the several i-r'zt t l the ltjl' illl'llll are billill :r the exan l judgment oi' the inannt'aeiii-1y ilietiiun it nnrh-r iowll that va ious ehiaiii 'ea :n l'oi'ni. prop tion an i minor iletaih:

ol a'te l to Within the warps oi' the app lltl 'y'l rlaiins. anti that 1 (lo nish to limit iilfi'rflli to {in} ymiiie tition zrueizon may be HR t? .Mfll an i ointruetion here -liu\\' llay in thn; tlthti l Kti my inwntion. what.

eoinliiraation in a irlaareteix ot a lunlmfllrlzln inlet alhl an inn unit in the illilllllitl' in the a llnnl entering through the ininlet the form of an it rl ,-io to pet the distribution out, ring lluitl nille arm of :an-t'aee. and means for it ltHFlllQ ite l slot. i u e; rboreter. the eonibination ot' a no ha in; a earimreting' elnnnlwr therein... i eonrluil Formed in the eaxing passing "li li'iilllfl ehainber through ws may he rlirertmi toheat v raihzw'eiin; eiianibeix a bpray nozzle 3w mounte in tin eming helm; the vari ureliiiif ii an aini he exhauq lli'iilill eonzluin a ow-r a file to hr means 'l'or turning: the wing, yalres in unison to increase or lleereaee tho outlet area between same.

3. In a earbureter. the combination of a easing having a earburoting chamber therein. an exliaiist pipe extending through sai l earbureting ehamher. a 'il'urality of annu iarly projoetintr ribr, i'orinetl on tho exterior bl will pipe. a spray nozzle lliOllltiGtl in the t'iiblllfl below the earliuifiing chamber. and a vaiye for (lireeting the spray and incoming air against the surface of the exhaust pipe.

l. A nulltiple jet spray nozzle tor carbu reters. eonsisting' ot' a nozzle easing having an oblong slot formed therein. a vain: interior of said t, \ing. a plurality of diwharge. openings in said alve adapted to regiqer with the oblon; slot in the nozzle. means for eonyeying oil to the discharge openings in the valve. and means for turning the yal e to bring said openinga into and out of rt; ater with the oblong slot.

.3. A multiple jet spray nozzle for ax-bin reters. consisting of a nozzle Casing having an oblong slot formed therein. a Valve interior of said lasing;- having an ol'ilong ehainber fornieil on one aide means for conveying oil to saitl elnnnbeig a plurality of spray openings formed in the \alre eominunieatinn nith sairl ('haniber antl tltlilPUXl to register with the oblongslot in the noz zie easing tilltl mean for turning the raly to bring: the pray openings into and out of irgistel with the oblong slot in tho nozzle easing.

r. A multiple let pray nozzle 'lor earbu I'tt 'l'e. t'illifil'--lliltf of a nozzle wining ha ing at. o long siot l ornml therein. a yalre in tvlloi' i i-1itl(l casing. a plurality ol' LllF rha LIP openings in v ai l yalre adapter]. to re; Hter with the oblong slot in the nozzle. Hitllll l'or eonyeying oil to the diseharge opening in the valve, means for turning the alye to bring aaivl openinga into anal out of register with the oblong slot. a pair of wing ral\e inountetl parallel with the nozzle raising. one on each side. alul meal For inning; or lowering: said valves in un son with relation to the oblong slot in the nozzle easing.

T. earbureter emnprising a emingz ha\- ing a earburetingg' ehainber formed therein. a re tangz'ular shaped xtension on the lower title-axing forming the inlet to the 'ill' flllt'llhg (llnllllkh a spray nozzle mount ml lmnrth yhe in eaitl exenaion having a tiiaehargge slot formed therein ot' a length approximate to the length of the inlet open in? a \alre interi r oi airl pray nozzle hm iirg' a plurality of spray f :i'lilttl therein :Hlapteel o i't' 'jlr-lt*l :lw-haroe slot in the nozzle. mean: o turn ing th y'alie to bring the pla lib in; fuel oil tn the spray UIM'HlIlQ'M in the \'ttl\e H. i\ '"nlnu'eter enui uh nn' a eaeingj ha ving' a rar niri-tinsg' vtizuuhe i'uruietl th rein. Ii l f"i:\! l:l21 ll;:l ='il xteuiaun ('2! the lmver eiul ul 5 il whine t'uruvl: the inlet to the eai-luu-etu 'lhlllliltl'. a wlbl' nozzle :nuunt ((l l iu 'ihwiw in sai l \\liil i)l! having a iliwlrup 't slut i t i'lllt'tl therein et' a length apln'nxiniate tn the length (it the nlet upeninr; r: valve interior ul' vai l 1u'a v nozzle having a plurality spray n iruiiub t'orlneil therein atlapteil to register uith the (llFUllulQe lut in the uuzzle. mean f r turn ing the valve tn hrin; the spray openings intiu ainl eut u?" reent r with the alhtllnli! slot. means l'ur eunie vinu auil -li-tril !uin;' fuel nil in the w mvv Ptlilllfjh in the valvewing l tw pimtall: lEH HHZ tl in the W"- tang'ular m ttllh' l nlet exter..--i n. uue en eaeli siile ul tluspray numle. aml mean in; in ur luvveriue' ai l valves in univerrelation to the iii-(harry urn-uni in the nezxl t). i\ earliureter min 1ri. ;in;' a (wing hav inn :i earl ureting hanilr-er l'nrniiai (h r in. a reetaug'ular shapevl extensiuu on the lmver eiel ut' sanl rising l'urliiin f the inlrl in the (:lt'lalllWliligf elianiher. a ua v uurrale n msnt \(l lengthwise i z'thl exteu-nnia tli eharge sl t t'nrin il th rein w a ngth approximate to the h ngth (it the inl t. Opt-. 1" inn. a valve interiur til \ai l e t-rav i2 having a pluralitv ut' spray l uruml therein ailegitezl to register tlin'l -'ltt in the nniwzle. meme t inn the valve in u'ing the nu lLiU :unl nut in" regiater with t,, 'lwlltllg't slut. ans fur unveving :uul iliii'i utii; {u the irav u a uiugw" in the valve Ll h wring u i m? i i rheiein an nutlet opening an exhaim a extending" threuu'h will mule! an v,ir inlet retiu the i'il ll. inlet nozzle wteniliuej aezw HIE! "i al m-ni nt with the mv .u unu jl v w Anni-tine ieeuui nlinefor delivering valve.

ll. A earlnuet'er eumprising a easing having; a rhnreting haniher termed therein and an air inlet and an untlet opening, an exhaust pipe extending hreueli said eat-hu- Fmnher. a sunny nozzle mounted in hetu' i: the xhauet pipe and the upeiaingri mitl s n-av nozzle extending aer ss the asing in alinenient with the 8X- hau t pipe aml liming a long ribbon-like S ut turineil therein alsu p sitiunetl in alinewent with the (*Xlmllht pipe. a valve interim rat the nex/le having a plurality (1f tliseharge upeuingjs 'urmeil th rein :nlaptetl to register with the h t' in the nnvzle. means for ileliv- 8O l'l'llnj' a h vurwearlmn tuel tn the valve, and means for turning" the valve to bring the valve epenings intn Mill nut if register with th slut in the nfizxle.

A "ai-imreter rmupri-i1xg a (a ing hav ins." a earliareting ehani'uer t'm'iuetl thereim an a r inlet an i an outlet opening. an exhamt, pipe extending thrsvugrh said earlmri-ting ianiheri a pray nozzle mounted in eie en the exhaust pipe aml the nl t nper ai l fibl'tly nuzzle extending sing in uliuement with the ex- :tlml having a lung: rililmn-like ii the ein him n;-:iiirnerl in aline- 1 th .\han.-t. pipe. a valve interior we inc uh lHH mg a plurality z t tllSFlHH'Qt irgw nit-uteri therein adapted in register p th slut in the muzzle. means for deli"- ering 1 huh: earlmn i'uel to the valve. means i'm urning the valv in tiring he valve a lrvdroearbon fuel to the 65 retmi l lll'nillitl in the easing. uue m ea li siile of the n uuzxle slut. ainl means fur turning wing valvw in unisun to iuei'eas-w or le- 1 5 {h an it the enrlut' th fun; will he il ZllFi pipe imvi Ih\-ll $l a lung I'ililHIIi-lilv'Q sl t formed therein aim pmitientil in aline ineut with the exhaust pipe :1 valw interim ml the new/iiihaving a plut'alitV nt' (liseharge e i uing's t'nrniwl therein :Hlflllitil tn register 12 with th: slit in the numzhu niean tur lltli\'- veinivtlr'a :lluHl fuel to the vzilveinseans lui- 'uruiny; the NlYf in t ring the valve inte :iusl nut (it iitflr-Hl' with ll! H -'I.if puir i l \Ylilif YnlUeS-i ie \H earl) Fitll" til i in turning ma the space between the ends of the vah'es and In testimony whereof I have hereunto set the spmy nozzle. mud means cnmpusmg my hand 1n the presence of two subscribing crank arms, 011v seemed on each mug valve, wltnesses.

an (MINE-U11. on the other 0nd of @llih crank WRIGHT E. IIOVVES. arm, a sluttvd bar into which said extensions Vitnesses:

px'oj'ect, and means for raising 01- lowering JOHN H. HERRING,

said bar. W. W. HEAmw. 

